Melanie purchased dress shirts to sell in his clothing store that has overhead expenses equal to 14.00% of costs. To make a profit of 15.00% of the cost, he sells them at a regular price of $65.00 each. a. What rate of markdown is required to sell the shirts at break-even? % Round to two decimal places b. What rate of markdown is required to sell the shirts at cost? % Round to two decimal places